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WO1993002325A1 - Element de regulation d'un ecoulement d'air comportant un clapet a disque amovible - Google Patents

Element de regulation d'un ecoulement d'air comportant un clapet a disque amovible Download PDF

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Publication number
WO1993002325A1
WO1993002325A1 PCT/SE1991/000504 SE9100504W WO9302325A1 WO 1993002325 A1 WO1993002325 A1 WO 1993002325A1 SE 9100504 W SE9100504 W SE 9100504W WO 9302325 A1 WO9302325 A1 WO 9302325A1
Authority
WO
WIPO (PCT)
Prior art keywords
hub
arms
housing
arm
seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/SE1991/000504
Other languages
English (en)
Inventor
Curt DÄVERMO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PRIMAL AB
Original Assignee
PRIMAL AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PRIMAL AB filed Critical PRIMAL AB
Publication of WO1993002325A1 publication Critical patent/WO1993002325A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers

Definitions

  • Air-flow control member with a removable valve disc.
  • the present invention refers to an air terminal device between a channel system and a room and refers to a device at such an air terminal, which makes possible a rapid and simple assembly and disassembly of the separate parts of the air terminal device.
  • air terminal devices are provided between the present room and behind a wall discharging ventilation duct through which is transported varying air quantities.
  • ducts and air terminal devices will receive depositions of dust and other contaminations in the channel system and on the surfaces of the air terminal device.
  • these ducts and air terminal device surfaces have to be cleaned, which is very difficult at present common designs of air terminal devices, and in certain cases even impos ⁇ sible to carry out without extensive operations in the building in question.
  • the air terminal device on the side facing the room is provided with a valve disc which is to its position axially settable, and by means of which the opening of the air terminal device can be controlled by its size, and which valve disc also works as a covering lid, which conceals the air terminal device and the duct behind the same for those present in the room.
  • This valve disc is commonly provided with a spindle, which can be screwed inwards to a desired degree in a hub provided coaxially in the air terminal device with a threaded bottom hole.
  • the hub is usually integrally formed with the air terminal device, and this means that the duct lying behind hardly can be cleaned without whole air terminal device and its retainer being disassembled, which is so complicated, that it is most frequently omitted, whereby neither the separate parts nor the duct will be cleaned.
  • DE-A-2018439 describes an airing valve with a coaxial hub, which in this carries an axially screwable valve cone and has three radial arms, which may be clamped against ramp formed resilient tongues which are inwards bent out from the inner wall of the valve housing.
  • This hub can be disassem ⁇ bled by being turned such that the arms thereof are free from the tongues, but such a rotation may demand not unes ⁇ sential force if the arms have been wedged against the tongues.
  • the tongues thereby might be damaged, which may imply that the whole valve housing has to be exchanged.
  • the tongues after some removals have lost their resili ⁇ ency, so that they do not give satisfactory locking func ⁇ tion, which again demands exchange of the whole valve hou ⁇ sing.
  • US-A- 3 155 027 describes a controllable air diffuser with a hub provided in a housing, which hub carries an axially settable valve disc, and the hub is fixed to the housing by means of three radial arms, which are secured by screws to axially inwards directed housing flanges positioned inside the housing behind the hub. Its true that this hub theoreti ⁇ cally by its screw and nut fastening gives a possibility of removal from the housing, whereby a duct situated behind could be reached, but since the fastenings are situated behind the hub inside the housing yet it should be necessary to remove the whole housing to reach the screws.
  • the object of the invention is to provide an air terminal device of the type stated in the preamble of the patent claim 1, which gives a possibility of a simple and rapid assembly and disassembly of the separate parts of the air terminal device and thereby also good possibilities of cleaning the surfaces of the air terminal device, and there ⁇ by also the surfaces which are facing the duct in operation position, as well as the duct itself without any change of the air flow previously set, and this has been accomplished by the air terminal device being provided with the features stated in the characterizing part of claim 1.
  • Fig. 1 shows an air terminal device provided with an arrang ⁇ ement according to the invention seen in a sectional view along the line I - I in Fig. 2.
  • Fig. 2 is a plan view of the air terminal device according to Fig. 1 seen from outside but with the valve disc removed.
  • Fig. 3 shows a section through a hub along the line III -III i Fig. 2.
  • Fig. 4 shows in a view from the above an alternative em ⁇ bodiment of the hub in an air terminal device according to the invention
  • Fig. 5 is a side view of the hub according to Fig. 4.
  • Fig. 6 in closer detail shows an opening in the valve hou ⁇ sing wall intended to receive and fix one of the retainer arms of the hub.
  • Fig. 1 shows a section along the line I - I in Fig. 2 throu ⁇ gh an air terminal device comprising a valve housing 1 formed as an essentiallly cylindrical pipe spigot 2 with a radially outwards facing flange 3 provided at one end of the spigot and intended to be mounted against a wall about an air duct so that the other end of the spigot enters into the duct.
  • the flange 3 is provided with screw holes 4, through which screws are to be screwed into a wall behind for fixing of the valve housing into position in the duct.
  • the side of the valve housing opposite to the flange 3 has somewhat smaller diameter than the rest of the housing and the tran- sition between the two housing portions is provided with a shoulder running about the inner circumference of the hou ⁇ sing, forming a conical seat 5, with the major side facing the flange side.
  • This shoulder serves as a seat for a sepa ⁇ rate, mainly conical pressure reducing device 6, which in Fig. 1 is shown with slightly cut off portions and designed as a funnel with a conical stepped wall, which serves to reduce the pressure in the duct and also contributes to reduction of sound.
  • the pressure reducing device is held in its position by its seat 5, so that it cannot fall out, by m eans of a retainer device 7 comprising a central hub 8 and a number, in the example shown three spoke formed, radially outwards from the hub directed arms 9, 10, 11 (see Fig. 2), with the same length and the ends of which fit into openings 12 (Fig. 6) in the wall of the valve housing, situated just outside the conical seat 5.
  • a retainer device 7 comprising a central hub 8 and a number, in the example shown three spoke formed, radially outwards from the hub directed arms 9, 10, 11 (see Fig. 2), with the same length and the ends of which fit into openings 12 (Fig. 6) in the wall of the valve housing, situated just outside the conical seat 5.
  • the hub 8 of the retainer device is formed as a bottom sleeve, the part of which is directed outwards is provided with an external thread 13 onto which can be screwed a corresponding internal thread on a sleeve 14 on a valve disc 15, which thereby can be secured by thre- ads to the bottom sleeve betweeen an inner position and an outer position where the inside of the valve disc is situa ⁇ ted at a distance from the valve housing flange and thereby forms a slot versus this of not unessential size.
  • the valve disc 15 on its inside is provided with an insulating layer 16, which partly prevents precipitation of condensation water and partly also as sound absorption.
  • the hub 8 which thus partly carries the valve disc 15 and partly by the ends on its arms 9, 10 and 11 being engaged with the openings 12, or other suitable attachment devices, in the valve housing wall will be fixed into the valve housing, keeps the pressure reducing device in position in its seat 5.
  • the arm 11 is designed to temporarily be shorted, so that the whole hub can be displaced in a direction towards the opening 12 former cooperating with this arm 11. In this way the fixed arms 9 and 10 may be pulled out of engagement with their cooperating openings 12 in the housing wall, and thereby the whole hub simply can be removed.
  • the pressure reducing device is mounted in the correct position in the seat 5 in the valve housing wall.
  • the conical pressure reducing device 6 at its major end is provided with an axially out ⁇ wards running flange, while the openings 12 for the hub arms 9, 10, 11 are constituted by elongated slots provided in the valve housing, which slots such as is shown in Fig.
  • the arm 11 is pro ⁇ vided with a guide, which is constituted by diametrically opposed recesses 17, 18 in the wall of the hub sleeve 8 placed slightly above the bottom of the sleeve, and which by means of upwards directed flanges 19 forms a slot in which is positioned a spring 20, which with one of its ends acts against the wall of the sleeve, and with its other presses against a shoulder 21 provided on the arm 11, so that the arm is prestressed to the position shown in Fig. 2.
  • a guide which is constituted by diametrically opposed recesses 17, 18 in the wall of the hub sleeve 8 placed slightly above the bottom of the sleeve, and which by means of upwards directed flanges 19 forms a slot in which is positioned a spring 20, which with one of its ends acts against the wall of the sleeve, and with its other presses against a shoulder 21 provided on the arm 11, so that the arm is prestressed to the position shown in Fig. 2.
  • the whole arm 11 may easily be removed from the hub sleeve, whereupon the spring 20 also is exposed to a possible exchange. Assembly of the hub and the whole air terminal device is then carried out in the reverse order in the same simple way. All parts of the hub with exception for the spring can be manufactured in a simple way in plas ⁇ tic without need for complicated tools or forming devices.
  • Fig. 4 in a view from the above and Fig. 5 in a lateral view show an alternative embodiment of the hub of the air termi ⁇ nal device, which as well as in the embodiment according to Fig. 1 to 3 comprises a bottom sleeve 8 with an external thread 13 and with three radial arms 9, 10 and 11a arranged with 120° mutual angular distance, which in the same way as in the previous illustrated example are going to be inserted in attachments in the housing of the air terminal device.
  • the hub differs from the earlier shown embodiment by the arm 11a, the length of which temporarily can be reduced is provided with a hinge 25 between its ends, which makes it possible to fold the arm 11a, so that its end comes out of engagement with its attachment in the housing of the air terminal device.
  • a latch 26 On the opposite side of the arm 11a cal- culated from the hinge a latch 26 is provided, which counte ⁇ racts that the arm 11a is folded about its hinge inadver ⁇ tantly.
  • the hub can be manufactured in plastic, whereby the hinge 25 as well as the latch 26 in a simple known way may be formed directly in the plastic material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Check Valves (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

Dispositif pour orifice d'aération comprenant un boîtier en form e de tube (2) à section transversale intérieure circulaire, pourvu d'un moyeu coaxial amovible (8) portant un moyen de couverture (15) mobile et réglable vers l'extérieur dudit boîtier. Le moyeu (8) possède au moins trois bras disposés radialement (9, 10, 11), formant des saillies équidistantes à partir dudit moyeu et présentant des distances angulaires réciproques sensiblement égales; lesdits bras peuvent se fixer au boîtier, de ce fait leurs extrémités extérieures s'introduisent dans des ouvertures correspondantes (12) situées dans la paroi du boîtier (2) et l'un des bras (11) comporte des moyens (20) conçus pour réduire temporairement sa longueur, afin de permettre le déplacement du moyeu (8) en direction dudit bras et, par conséquent, d'extraire les autres bras de leurs ouvertures situées dans la paroi de retenue.
PCT/SE1991/000504 1990-01-26 1991-07-22 Element de regulation d'un ecoulement d'air comportant un clapet a disque amovible Ceased WO1993002325A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9000276A SE467676B (sv) 1990-01-26 1990-01-26 Luftdon med demonterbar ventiltallrik

Publications (1)

Publication Number Publication Date
WO1993002325A1 true WO1993002325A1 (fr) 1993-02-04

Family

ID=20378360

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1991/000504 Ceased WO1993002325A1 (fr) 1990-01-26 1991-07-22 Element de regulation d'un ecoulement d'air comportant un clapet a disque amovible

Country Status (2)

Country Link
SE (1) SE467676B (fr)
WO (1) WO1993002325A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155027A (en) * 1962-11-29 1964-11-03 Lloyd G Dayus Adjustable air diffuser
DE2018439A1 (de) * 1970-04-17 1971-10-28 Upmann A Ohg Lüftungsventil
US4817508A (en) * 1987-11-05 1989-04-04 Carnes Company, Inc. Opposed blade balanced damper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155027A (en) * 1962-11-29 1964-11-03 Lloyd G Dayus Adjustable air diffuser
DE2018439A1 (de) * 1970-04-17 1971-10-28 Upmann A Ohg Lüftungsventil
US4817508A (en) * 1987-11-05 1989-04-04 Carnes Company, Inc. Opposed blade balanced damper

Also Published As

Publication number Publication date
SE467676B (sv) 1992-08-24
SE9000276L (sv) 1991-07-27
SE9000276D0 (sv) 1990-01-26

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